Seiko Cal. 6633 - 738

The 6633-738 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6633 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-054b5e3991b5]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1997

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